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Vehicle seat assembly

a seat and vehicle technology, applied in the field of rack and pinion arrangement, can solve the problems of complex and expensive current four-bar linkage system, seat cushion interference with fully folding seat back,

Inactive Publication Date: 2012-01-24
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes different ways to create a seat assembly for vehicles that allows the seat to move back and forth. This movement is made possible by using a rack and pinion gear system, which is connected between the seat base and the seat back. This system allows for smooth and comfortable movement of the seat as the driver or passenger moves or the vehicle moves. The technical effects of this invention include improved comfort, safety, and overall driving experience for drivers and passengers.

Problems solved by technology

While simple in construction, a drawback of this arrangement is that the stationary seat cushion can interfere with fully folding the seat back to a horizontal position.
Unfortunately, most current four-bar linkage systems are often complex and expensive.

Method used

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Examples

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Embodiment Construction

[0012]Referring now to the drawings, wherein the showings are for purposes of illustrating one or more exemplary embodiments, FIGS. 2 and 3 show a vehicle seat assembly 30 including a seat base 32 and a seat back 34 pivotally mounted or rotatably coupled to the seat base 32. The vehicle seat assembly 30 includes a rack and pinion assembly 36, also referred to herein as a rack and pinion arrangement, for controlling relative movement between the seat back 34 and the seat base 32. The rack and pinion assembly 36 includes a pinion gear 38 mounted to the seat back 34 at a lower end 34a thereof and a rack gear 40 mounted to the seat base 32. As will be described in more detail below, the pinion gear 38 and the rack gear 40 are arranged such that pivotable movement of the seat back 34 effects longitudinal movement of the seat base 32, such as along a longitudinal length of the seat base 32. In addition, the pinion gear 38 and the rack gear 40 are further arranged in the illustrated embodi...

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Abstract

A vehicle seat assembly includes a seat base having a rack gear mounted thereto and a seat back pivotally mounted to the seat base with a pinion gear mounted at a lower end thereof. The pinion gear and the rack gear are arranged such that pivotal movement of the seat back effects longitudinal movement of the seat base.

Description

BACKGROUND[0001]The present disclosure generally relates to a vehicle seat assembly, and more particularly relates to a rack and pinion arrangement for a vehicle seat assembly having a seat base and a seat back rotatably coupled to the seat base.[0002]It is known to employ a fold-down seat back in a vehicle seat to provide increased cargo carrying capacity to a vehicle. Some vehicle seats use a fixed seat cushion with a pivotally mounted seat back. While simple in construction, a drawback of this arrangement is that the stationary seat cushion can interfere with fully folding the seat back to a horizontal position. With reference to FIG. 1, such a prior art vehicle seat assembly 10 is shown having a fixed seat base 12 and a seat back 14 pivotally mounted to the fixed seat base 12. As shown, the seat base 12 prevents the seat back 14 from being fully folded down into a horizontal position and thus a rear side surface 14a of the seat back 14 cannot be positioned so as to be coplanar w...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): B60N2/02
CPCB60N2/3013B60N2/3054B60N2/36B60N2/3056Y10T74/1967
Inventor ELLISON, TERRIE
Owner HONDA MOTOR CO LTD
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